informatique:cisco:qos
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informatique:cisco:qos [2010/03/31 09:29] – shaping pteu | informatique:cisco:qos [2010/04/01 13:55] – Lexique shaping/policing pteu | ||
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====Shaping/ | ====Shaping/ | ||
ou //trafic conditioner// | ou //trafic conditioner// | ||
+ | |||
+ | Policing VS Shaping | ||
+ | {{http:// | ||
+ | |||
+ | ===Lexique=== | ||
+ | >GTS : Generic Traffic Shaping | ||
+ | >CIR Commited Information Rate = mean rate, ou débit souscrit | ||
+ | >CAR Committed Access Rate | ||
+ | >Bc conform burst | ||
+ | >Be excess burst | ||
+ | >pir Peak Information Rate | ||
+ | > | ||
+ | > | ||
+ | > | ||
+ | > | ||
+ | >Cisco recommends the following values for the normal and extended burst parameters: | ||
+ | >normal burst = configured rate * (1 byte)/(8 bits) * 1.5 seconds | ||
+ | > | ||
+ | |||
===shaping=== | ===shaping=== | ||
- | Le **shaping** c'est du lissage de trafic = étalement des bursts qui dépassent le **CIR** (Commited Information Rate, c' | + | Le **shaping** c'est du lissage de trafic = étalement des bursts qui dépassent le **CIR** (Commited Information Rate, c' |
+ | |||
+ | {{http:// | ||
* bufferisation jusqu' | * bufferisation jusqu' | ||
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* s' | * s' | ||
- | Notions de **token bucket** = les jetons se régénèrent à la vitesse du CIR = Bc / Tc | + | Le policing utilise le concept du **token bucket** |
+ | |||
+ | ===Liens=== | ||
+ | |||
+ | * [[http:// | ||
+ | * [[http:// | ||
====Link efficiency==== | ====Link efficiency==== |
informatique/cisco/qos.txt · Last modified: 2013/10/14 20:44 by 127.0.0.1